CN107676805A - A kind of efficiently water intaking eliminating white smoke cooperation-removal pollutant device and its method of work - Google Patents
A kind of efficiently water intaking eliminating white smoke cooperation-removal pollutant device and its method of work Download PDFInfo
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- CN107676805A CN107676805A CN201710862586.6A CN201710862586A CN107676805A CN 107676805 A CN107676805 A CN 107676805A CN 201710862586 A CN201710862586 A CN 201710862586A CN 107676805 A CN107676805 A CN 107676805A
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- water
- flue gas
- heat
- white smoke
- eliminating white
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/006—Layout of treatment plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/60—Heavy metals; Compounds thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The present invention relates to a kind of efficiently water intaking eliminating white smoke cooperation-removal pollutant device and its method of work, including air-introduced machine, depth residual neat recovering system, desulphurization system, high-efficiency condensation water intake system, flue gas reheat eliminating white smoke system, chimney and heating agent water-circulating pump, high-efficiency condensation water intake system includes condensation water taking heat-transfer system, condensate water circulatory pump and mechanical-draft cooling tower, condensation water taking heat-transfer system is arranged at the exhaust pass of desulphurization system, condensation water taking heat-transfer system is connected with condensate water circulatory pump, condensate water circulatory pump is connected with mechanical-draft cooling tower, condensation water taking heat-transfer system is connected with mechanical-draft cooling tower；Depth residual neat recovering system is connected with heating agent water-circulating pump, and heating agent water-circulating pump is connected with flue gas reheat eliminating white smoke system, and depth residual neat recovering system is connected with flue gas reheat eliminating white smoke system.Large quantity of moisture in recovered flue gas of the present invention, significantly save the water consumption of desulphurization system；Eliminate the visual pollution of white plume；Effectively reduce the grade of chimney anticorrosion.
Description
Technical field
The present invention relates to a kind of efficiently water intaking eliminating white smoke cooperation-removal SO3, Hg, the device of the pollutant such as aerosol and side
Method, particularly a kind of efficiently water intaking eliminating white smoke cooperation-removal pollutant device and its method of work.
Background technology
With the severization of environment protection emission requirement, to realize desulfurization minimum discharge, it is big that most of power plant need to remove air leak rate of air curtain
Swinging GGH, and after cancelling swinging GGH, the rise of desulphurization system entrance original flue-gas temperature, desulphurization system outlet neat stress temperature
Degree reduces, so as to cause the increase of desulphurization system water consume, exhaust pass burn into chimney internal corrosion and white " plume " vision
The problems such as pollution.
Our countries belong to serious shortage of water resources and the unbalanced country of distribution of water resources in addition, the shortage of water resource into
To restrict the serious problems of country and local economic development, desulphurization system water consumption increases considerably after cancelling swinging GGH, and
Discharged by chimney white cigarette, not only cause the waste of water resource, and cause the environmental problems such as the visual pollution of white cigarette.
With dampening ten and《Fire coal energy-saving emission-reducing and transformation action plan》Promulgation, country for industrial enterprise's water consumption
With the further severization of disposal of pollutants policy.Therefore when carrying out flue gas pollutant improvement, it is necessary to consider saving water resource comprehensively
With pollutant control integration approach.
The content of the invention
It is an object of the invention to overcome above shortcomings in the prior art, and offer is a kind of reasonable in design,
Efficiently water intaking eliminating white smoke cooperation-removal SO3, Hg, the pollutant such as aerosol, while moisture in controlling recovered flue gas, effectively
Eliminate the efficient water intaking eliminating white smoke cooperation-removal pollutant device and its method of work of the visual pollution of white plume.The present invention carries
A kind of efficiently water intaking eliminating white smoke cooperation-removal SO is gone out3, Hg, the apparatus and method of the pollutant such as aerosol, efficiently returned realizing
While receiving flue gas moisture, cooperation-removal SO3, Hg, the pollutant such as aerosol, the minimum discharge of flue dust can be ensured, can be had in addition
Effect eliminates the visual pollution of chimney white plume, and can slow down the low-temperature corrosion of chimney, so as to reach efficiently water intaking, eliminate white
Plume, cooperation-removal SO3, Hg, the pollutant such as aerosol.In coal-burning boiler tail flue gas through efficiently water intaking eliminating white smoke cooperation-removal
SO3, Hg, the pollutant such as aerosol device processing after, recyclable flue gas moisture 50-100 t/h, and realize 50~80% SO3,
50~80% Hg and 60~80% aerosol removal efficiency, chimney white cigarette visual pollution is eliminated, ensure that in chimney be dry flue gas
State, reduce chimney low-temperature corrosion.
Technical scheme is used by the present invention solves the above problems：A kind of efficiently water intaking eliminating white smoke cooperation-removal pollutant
Device, it is characterised in that：Including air-introduced machine, depth residual neat recovering system, desulphurization system, high-efficiency condensation water intake system, flue gas again
Hot eliminating white smoke system, chimney and heating agent water-circulating pump, high-efficiency condensation water intake system includes condensation water taking heat-transfer system, condensed water follows
Ring pump and mechanical-draft cooling tower, air-introduced machine, depth residual neat recovering system, desulphurization system, high-efficiency condensation water intake system, flue gas are again
Hot eliminating white smoke system and chimney are set gradually along flow of flue gas direction, and air-introduced machine is connected with depth residual neat recovering system, depth
Residual neat recovering system is arranged at the gas approach of desulphurization system, and high-efficiency condensation water intake system is arranged in the outlet cigarette of desulphurization system
At road, flue gas reheat eliminating white smoke system is arranged in the flue at the rear portion of high-efficiency condensation water intake system, flue gas reheat eliminating white smoke system
Connected with chimney；
Condensation water taking heat-transfer system is arranged at the exhaust pass of desulphurization system, condensation water taking heat-transfer system and condensate water circulatory pump
It is connected, condensate water circulatory pump is connected with mechanical-draft cooling tower, and condensation water taking heat-transfer system is connected with mechanical-draft cooling tower, cold
Solidifying water taking heat-transfer system, condensate water circulatory pump and mechanical-draft cooling tower form closed-loop path；
Depth residual neat recovering system is connected with heating agent water-circulating pump, and heating agent water-circulating pump is connected with flue gas reheat eliminating white smoke system,
Depth residual neat recovering system is connected with flue gas reheat eliminating white smoke system, depth residual neat recovering system, heating agent water-circulating pump and flue gas
Reheating eliminating white smoke system forms closed-loop path.Depth residual neat recovering system, flue gas reheat eliminating white smoke system and heating agent water-circulating pump
It is synthetic operation.
Efficiently water intaking eliminating white smoke cooperation-removal pollutant device of the present invention also includes wet electrical dust precipitator system, wet type
Electric dust removal system is arranged at the exhaust pass of desulphurization system, and desulphurization system, wet electrical dust precipitator system and high-efficiency condensation take
Water system is sequentially connected along flow of flue gas direction.
Condensation water taking heat-transfer system of the present invention is by heat exchanger shell, upper spacer, heat exchanger tube, lower clapboard and water leg group
Into；Upper spacer, heat exchanger tube and lower clapboard are arranged in heat exchanger shell, and upper spacer is arranged on the top of lower clapboard, heat exchanger tube
It is arranged between upper spacer and lower clapboard, water leg is arranged at the lower section of heat exchanger tube and lower clapboard.Upper spacer and lower clapboard are effective
Ensure the air-tightness of heat exchanger shell, while lower clapboard also needs to ensure the collection of flue gas water intaking.
Lower clapboard of the present invention is combined by top plate and lower plywood, and top plate is arranged at the top of lower plywood, top plate
For umbrella shape plate, the intermediate altitude of top plate is higher than the brim height of top plate, and lower plywood is porous plate, top plate and lower plywood it
Between connected by metal framework.
The shape of cross section of upper spacer of the present invention and the shape of cross section of lower clapboard are rectangle, square or circle
Shape, the heat exchanger tube material of condensation water taking heat-transfer system is fluoroplastics, the flue gas of outlet of the fluoroplastics to wet electrical dust precipitator system
When being condensed, the moisture of the neat stress of the outlet of wet electrical dust precipitator system, recyclable about 50-100t/h water can be removed
Point；SO in effective place to go neat stress while condensation water taking heat-transfer system condenses to neat stress in addition3, Hg, the dirt such as aerosol
Contaminate thing.
A kind of method of work of efficiently water intaking eliminating white smoke cooperation-removal pollutant device, it is characterised in that：Including following step
Suddenly：
Flue gas passes through by air-introduced machine, depth residual neat recovering system, desulphurization system, high-efficiency condensation water intake system, flue gas reheat successively
Eliminating white smoke system and chimney, the flue gas of the outlet of air-introduced machine is low through depth residual neat recovering system processing cigarette temperature drop, the cigarette after cooling
Gas enters condensation water taking heat-transfer system after desulphurization system is handled and condensed, and condensed flue gas enters flue gas reheat eliminating white smoke
System is heated；
Condensed water is exchanged heat by condensing water taking heat-transfer system with flue gas, after condensed water heating, is conveyed by condensate water circulatory pump
Being cooled to mechanical-draft cooling tower, subsequent condensed water is recycled to condensation water taking heat-transfer system from mechanical-draft cooling tower again,
So as to realize the cycle heat exchange of condensed water；
Heat medium water is exchanged heat by depth residual neat recovering system with flue gas, defeated via heating agent water-circulating pump after heat medium water heating
Flue gas reheat eliminating white smoke system is sent to, carrying out heat exchange again with flue gas cools, and then heat medium water is recycled to depth waste heat recovery
System, so as to realize the cycle heat exchange of heat medium water.
Flue gas of the present invention passes through by air-introduced machine, depth residual neat recovering system, desulphurization system, wet electrical dust precipitator successively
System, high-efficiency condensation water intake system, flue gas reheat eliminating white smoke system and chimney.
Condensed water of the present invention is circulated in heat exchanger tube, and flue gas is contacted with heat exchanger tube and changed so as to transfer heat to
Cooling water in heat pipe so that flue gas generates condensed water, and the condensed water of flue gas generation is flowed into water leg by lower clapboard.
40-50 DEG C of 0-25 DEG C of the condensed water taking heat-transfer system of condensed water and the exit of wet electrical dust precipitator system
Flue gas is exchanged heat, and then condensate temperature is increased to 10-35 DEG C, and the increasing extent of temperature of condensed water is 10-15 DEG C, flue-gas temperature by
40-50 DEG C is reduced to 35-45 DEG C, and flue-gas temperature cooling extent is 3-5 DEG C, and the flue gas after cooling enters flue gas reheat eliminating white smoke system
System, the condensed water after heating cool down into mechanical-draft cooling tower；
45-55 DEG C of heat medium water is exchanged heat in depth residual neat recovering system with flue gas, and flue-gas temperature cools to 65-90 DEG C,
Flue-gas temperature cooling extent is 15-40 DEG C, and heat medium water is warming up to 60-75 DEG C；
60-75 DEG C of heat medium water is exchanged heat in flue gas reheat eliminating white smoke system with flue gas, and condensation water taking heat-transfer system goes out
35-45 DEG C of flue gas of mouth is warming up to 50-70 DEG C, and flue-gas temperature increasing extent of temperature is 15-40 DEG C, and heat medium water cools to 45-55 DEG C.
Flue gas of the present invention condense water taking heat-transfer system condensed while can remove flue gas in SO3, Hg, aerosol
Deng pollutant, flue gas is in unsaturation dry flue gas state after flue gas reheat eliminating white smoke system is heated, and can effectively disappear
Except white phenomenon, while effectively reduce the corrosion of chimney；The heat of depth residual neat recovering system recovery is used to heat flue gas reheat
Eliminating white smoke system, the condensed water of condensation water taking heat-transfer system come from mechanical-draft cooling tower.
The present invention compared with prior art, has advantages below and effect：
1）Large quantity of moisture in recovered flue gas, significantly save the water consumption of desulphurization system；
2）Eliminate the visual pollution of white plume；
3）Cooperation-removal SO3, Hg, the pollutant such as aerosol, be advantageous to ensure the minimum discharge of flue dust
4）The process route of the present invention, it can effectively reduce the grade of chimney anticorrosion.
Brief description of the drawings
Fig. 1 is the main structure diagram of the embodiment of the present invention 1.
Fig. 2 is the main structure diagram of the embodiment of the present invention 2.
Fig. 3 is the condensation water taking heat-transfer system main structure diagram of the embodiment of the present invention 1 and 2.
Fig. 4 is the lower clapboard main structure diagram of the embodiment of the present invention 1 and 2.
Fig. 5 is the lower clapboard overlooking the structure diagram of the embodiment of the present invention 1 and 2（Rectangle）.
Fig. 6 is the lower clapboard overlooking the structure diagram of the embodiment of the present invention 1 and 2（Square）.
Fig. 7 is the lower clapboard overlooking the structure diagram of the embodiment of the present invention 1 and 2（It is circular）.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is described in further detail by embodiment, and following examples are to this hair
Bright explanation and the invention is not limited in following examples.
Embodiment 1.
Referring to Fig. 1,3-7.
The present embodiment returns for a kind of efficiently water intaking eliminating white smoke cooperation-removal pollutant device, including air-introduced machine 1, depth waste heat
Receipts system 2, desulphurization system 3, high-efficiency condensation water intake system 4, flue gas reheat eliminating white smoke system 5, chimney 6 and heating agent water-circulating pump 7.
High-efficiency condensation water intake system 4 includes condensation water taking heat-transfer system 8, condensate water circulatory pump 9 and mechanical-draft cooling tower 10.
Air-introduced machine 1, depth residual neat recovering system 2, desulphurization system 3, high-efficiency condensation water intake system 4, flue gas reheat eliminating white smoke
System 5 and chimney 6 are set gradually along flow of flue gas direction, and air-introduced machine 1 is connected with depth residual neat recovering system 2, depth waste heat
Recovery system 2 is arranged at the gas approach of desulphurization system 3, and high-efficiency condensation water intake system 4 is arranged in the outlet cigarette of desulphurization system 3
At road, flue gas reheat eliminating white smoke system 5 is arranged in the flue at the rear portion of high-efficiency condensation water intake system 4, flue gas reheat eliminating white smoke system
System 5 connects with chimney 6.
Condensation water taking heat-transfer system 8 is arranged at the exhaust pass of desulphurization system 3, condensation water taking heat-transfer system 8 and condensation
Water-circulating pump 9 is connected, and condensate water circulatory pump 9 is connected with mechanical-draft cooling tower 10, condensation water taking heat-transfer system 8 and force ventilation
Cooling tower 10 is connected, and condensation water taking heat-transfer system 8, condensate water circulatory pump 9 and mechanical-draft cooling tower 10 form closed-loop path.
Depth residual neat recovering system 2 is connected with heating agent water-circulating pump 7, heating agent water-circulating pump 7 and flue gas reheat eliminating white smoke system
System 5 is connected, and depth residual neat recovering system 2 is connected with flue gas reheat eliminating white smoke system 5, and depth residual neat recovering system 2, heat medium water follow
Ring pump 7 and flue gas reheat eliminating white smoke system 5 form closed-loop path.Depth residual neat recovering system 2, flue gas reheat eliminating white smoke system 5
It is synthetic operation with heating agent water-circulating pump 7.
Water taking heat-transfer system 8 is condensed by 15 groups of heat exchanger shell, upper spacer 13, heat exchanger tube 12, lower clapboard 14 and water leg
Into.Upper spacer 13, heat exchanger tube 12 and lower clapboard 14 are arranged in heat exchanger shell, and upper spacer 13 is arranged on the upper of lower clapboard 14
Side, heat exchanger tube 12 are arranged between upper spacer 13 and lower clapboard 14, and water leg 15 is arranged under heat exchanger tube 12 and lower clapboard 14
Side.The air-tightness of heat exchanger shell is effectively ensured in upper spacer 13 and lower clapboard 14, while lower clapboard 14 also needs to ensure water leg 15
Collection to condensed water.
The material for condensing the heat exchanger tube 12 of water taking heat-transfer system 8 is fluoroplastics.The cigarette of outlet of the fluoroplastics to desulphurization system 3
When gas is condensed, the moisture of the neat stress of the outlet of desulphurization system 3, recyclable about 50-100t/h moisture can be removed；In addition
SO in effective place to go neat stress while condensation water taking heat-transfer system 8 condenses to neat stress3, Hg, the pollutant such as aerosol.
Lower clapboard 14 is combined by top plate 17 and lower plywood 18, and top plate 17 is arranged at the top of lower plywood 18, top plate
17 be umbrella shape plate, and the intermediate altitude of top plate 17 is slightly above the brim height of top plate 17, and lower plywood 18 is porous plate, top plate
Connected between 17 and lower plywood 18 by metal framework.
Referring to Fig. 5-7, the shape of cross section of upper spacer 13 and the shape of cross section of lower clapboard 14 be rectangle, square or
One kind in circle.
Equally there is heat exchanger tube 12, depth waste heat recovery in depth residual neat recovering system 2 and flue gas reheat eliminating white smoke system 5
System 2 and the material of the heat exchanger tube 12 in flue gas reheat eliminating white smoke system 5 are fluoroplastics.
The present embodiment additionally provides a kind of method of work of efficiently water intaking eliminating white smoke cooperation-removal pollutant device, including such as
Lower step：
Flue gas passes through by air-introduced machine 1, depth residual neat recovering system 2, desulphurization system 3, high-efficiency condensation water intake system 4, flue gas successively
Reheating eliminating white smoke system 5 and chimney 6, the flue gas of the outlet of air-introduced machine 1 is low through the processing cigarette temperature drop of depth residual neat recovering system 2, drop
Flue gas after temperature enters condensation water taking heat-transfer system 8 after the processing of desulphurization system 3 and condensed, and condensed flue gas enters flue gas
Reheating eliminating white smoke system 5 is heated, and is finally discharged via chimney 6.
Condensed water is exchanged heat by condensing water taking heat-transfer system 8 with flue gas, after condensed water heating, by condensate water circulatory pump
9, which are transported to mechanical-draft cooling tower 10, is cooled, and subsequent condensed water is recycled to condensation water intaking from mechanical-draft cooling tower 10 again
Heat-exchange system 8, so as to realize the cycle heat exchange of condensed water.
Heat medium water is exchanged heat by depth residual neat recovering system 2 with flue gas, after heat medium water heating, via heating agent water circulation
Pump 7 is transported to flue gas reheat eliminating white smoke system 5, and carrying out heat exchange again with flue gas cools, and then heat medium water is recycled to more than depth
Heat recovery system 2, so as to realize the cycle heat exchange of heat medium water.
Condensed water condensation water taking heat-transfer system 8 heat exchanger tube 12 in circulated, flue gas contacted with heat exchanger tube 12 so that
The cooling water transferred heat in heat exchanger tube 12 so that flue gas generates condensed water, and the condensed water of flue gas generation passes through lower clapboard
14 flow into water leg 15.
Specifically, 40-50 DEG C of the exit of 0-25 DEG C of the condensed water taking heat-transfer system 8 of condensed water and desulphurization system 3
Flue gas exchanged heat, then condensate temperature is increased to 10-35 DEG C, and the increasing extent of temperature of condensed water is 10-15 DEG C, flue-gas temperature
35-45 DEG C is reduced to by 40-50 DEG C, flue-gas temperature cooling extent is 3-5 DEG C, and the flue gas after cooling enters flue gas reheat eliminating white smoke
System 5, the condensed water after heating cool down into mechanical-draft cooling tower 10.
Specifically, 45-55 DEG C of heat medium water is exchanged heat in depth residual neat recovering system 2 with flue gas, flue-gas temperature drop
Temperature arrives 65-90 DEG C, and flue-gas temperature cooling extent is 15-40 DEG C, and heat medium water is warming up to 60-75 DEG C, and the heat medium water after heating enters
Flue gas reheat eliminating white smoke system 5, the flue gas flow direction desulphurization system 3 after cooling.
Specifically, 60-75 DEG C of heat medium water is exchanged heat in flue gas reheat eliminating white smoke system 5 with flue gas, condensation water intaking
35-45 DEG C of flue gas of the outlet of heat-exchange system 8 is warming up to 50-70 DEG C, and flue-gas temperature increasing extent of temperature is 15-40 DEG C, heat medium water
45-55 DEG C is cooled to, the heat medium water after cooling flows to depth residual neat recovering system 2 again, the flue gas flow direction chimney 6 after heating.
The present embodiment flue gas condense water taking heat-transfer system 8 condensed while can remove flue gas in SO3, Hg, gas
The pollutants such as colloidal sol, flue gas are in unsaturation dry flue gas state after flue gas reheat eliminating white smoke system 5 is heated, can be effective
The white phenomenon of elimination, while effectively reduce the corrosion of chimney 6；The heat that depth residual neat recovering system 2 reclaims is used to heat cigarette
Gas reheating eliminating white smoke system 5, the condensed water of condensation water taking heat-transfer system 8 come from mechanical-draft cooling tower 10.
Embodiment 2.
Referring to Fig. 2-7.
The present embodiment is a kind of efficiently water intaking eliminating white smoke cooperation-removal pollutant device, including wet electrical dust precipitator system
11st, air-introduced machine 1, depth residual neat recovering system 2, desulphurization system 3, high-efficiency condensation water intake system 4, flue gas reheat eliminating white smoke system 5,
Chimney 6 and heating agent water-circulating pump 7.High-efficiency condensation water intake system 4 includes condensation water taking heat-transfer system 8, condensate water circulatory pump 9 and machine
Tool aerating and cooling tower 10.
Air-introduced machine 1, depth residual neat recovering system 2, desulphurization system 3, wet electrical dust precipitator system 11, high-efficiency condensation water intaking system
System 4, flue gas reheat eliminating white smoke system 5 and chimney 6 are set gradually along flow of flue gas direction, air-introduced machine 1 and depth waste heat recovery
System 2 is connected, and depth residual neat recovering system 2 is arranged at the gas approach of desulphurization system 3, and wet electrical dust precipitator system 11 is set
At the exhaust pass of desulphurization system 3, high-efficiency condensation water intake system 4 is arranged in the exhaust pass of wet electrical dust precipitator system 11
Place, flue gas reheat eliminating white smoke system 5 are arranged in the flue at the rear portion of high-efficiency condensation water intake system 4, flue gas reheat eliminating white smoke system 5
Connected with chimney 6.
Condensation water taking heat-transfer system 8 is arranged at the exhaust pass of wet electrical dust precipitator system 11, condensation water taking heat-transfer system
System 8 is connected with condensate water circulatory pump 9, and condensate water circulatory pump 9 is connected with mechanical-draft cooling tower 10, condensation water taking heat-transfer system 8
It is connected with mechanical-draft cooling tower 10, condensation water taking heat-transfer system 8, condensate water circulatory pump 9 and mechanical-draft cooling tower 10 are formed
Closed-loop path.
Depth residual neat recovering system 2 is connected with heating agent water-circulating pump 7, heating agent water-circulating pump 7 and flue gas reheat eliminating white smoke system
System 5 is connected, and depth residual neat recovering system 2 is connected with flue gas reheat eliminating white smoke system 5, and depth residual neat recovering system 2, heat medium water follow
Ring pump 7 and flue gas reheat eliminating white smoke system 5 form closed-loop path.Depth residual neat recovering system 2, flue gas reheat eliminating white smoke system 5
It is synthetic operation with heating agent water-circulating pump 7.
Water taking heat-transfer system 8 is condensed by 15 groups of heat exchanger shell, upper spacer 13, heat exchanger tube 12, lower clapboard 14 and water leg
Into.Upper spacer 13, heat exchanger tube 12 and lower clapboard 14 are arranged in heat exchanger shell, and upper spacer 13 is arranged on the upper of lower clapboard 14
Side, heat exchanger tube 12 are arranged between upper spacer 13 and lower clapboard 14, and water leg 15 is arranged under heat exchanger tube 12 and lower clapboard 14
Side.The air-tightness of heat exchanger shell is effectively ensured in upper spacer 13 and lower clapboard 14, while lower clapboard 14 also needs to ensure water leg 15
Collection to condensed water.
The material for condensing the heat exchanger tube 12 of water taking heat-transfer system 8 is fluoroplastics.Fluoroplastics are to wet electrical dust precipitator system 11
The flue gas of outlet when being condensed, can remove the moisture of the neat stress of the outlet of wet electrical dust precipitator system 11, it is recyclable about
50-100t/h moisture；SO in effective place to go neat stress while condensation water taking heat-transfer system 8 condenses to neat stress in addition3、
The pollutants such as Hg, aerosol.
Lower clapboard 14 is combined by top plate 17 and lower plywood 18, and top plate 17 is arranged at the top of lower plywood 18, top plate
17 be umbrella shape plate, and the intermediate altitude of top plate 17 is slightly above the brim height of top plate 17, and lower plywood 18 is porous plate, top plate
Connected between 17 and lower plywood 18 by metal framework.
Referring to Fig. 5-7, the shape of cross section of upper spacer 13 and the shape of cross section of lower clapboard 14 be rectangle, square or
One kind in circle.
Equally there is heat exchanger tube 12, depth waste heat recovery in depth residual neat recovering system 2 and flue gas reheat eliminating white smoke system 5
System 2 and the material of the heat exchanger tube 12 in flue gas reheat eliminating white smoke system 5 are fluoroplastics.
The present embodiment additionally provides a kind of method of work of efficiently water intaking eliminating white smoke cooperation-removal pollutant device, including such as
Lower step：
Flue gas successively pass through by air-introduced machine 1, depth residual neat recovering system 2, desulphurization system 3, wet electrical dust precipitator system 11, efficiently
Water intake system 4, flue gas reheat eliminating white smoke system 5 and chimney 6 are condensed, the flue gas of the outlet of air-introduced machine 1 is through depth waste heat recovery system
The processing cigarette temperature drop of system 2 is low, and the flue gas after cooling enters the dedusting of wet electrical dust precipitator system 11 after the processing of desulphurization system 3, then
Leave wet electrical dust precipitator system 11 to be condensed into condensation water taking heat-transfer system 8, condensed flue gas enters flue gas reheat
Eliminating white smoke system 5 is heated, and is finally discharged via chimney 6.
Condensed water is exchanged heat by condensing water taking heat-transfer system 8 with flue gas, after condensed water heating, by condensate water circulatory pump
9, which are transported to mechanical-draft cooling tower 10, is cooled, and subsequent condensed water is recycled to condensation water intaking from mechanical-draft cooling tower 10 again
Heat-exchange system 8, so as to realize the cycle heat exchange of condensed water.
Heat medium water is exchanged heat by depth residual neat recovering system 2 with flue gas, after heat medium water heating, via heating agent water circulation
Pump 7 is transported to flue gas reheat eliminating white smoke system 5, and carrying out heat exchange again with flue gas cools, and then heat medium water is recycled to more than depth
Heat recovery system 2, so as to realize the cycle heat exchange of heat medium water.
Condensed water condensation water taking heat-transfer system 8 heat exchanger tube 12 in circulated, flue gas contacted with heat exchanger tube 12 so that
The cooling water transferred heat in heat exchanger tube 12 so that flue gas generates condensed water, and the condensed water of flue gas generation passes through lower clapboard
14 flow into water leg 15.
Specifically, the exit of 0-25 DEG C of the condensed water taking heat-transfer system 8 of condensed water and wet electrical dust precipitator system 11
40-50 DEG C of flue gas exchanged heat, then condensate temperature is increased to 10-35 DEG C, and the increasing extent of temperature of condensed water is 10-15
DEG C, flue-gas temperature is reduced to 35-45 DEG C by 40-50 DEG C, and flue-gas temperature cooling extent is 3-5 DEG C, and the flue gas after cooling enters cigarette
Gas reheating eliminating white smoke system 5, the condensed water after heating cool down into mechanical-draft cooling tower 10.
Specifically, 45-55 DEG C of heat medium water is exchanged heat in depth residual neat recovering system 2 with flue gas, flue-gas temperature drop
Temperature arrives 65-90 DEG C, and flue-gas temperature cooling extent is 15-40 DEG C, and heat medium water is warming up to 60-75 DEG C, and the heat medium water after heating enters
Flue gas reheat eliminating white smoke system 5, the flue gas flow direction desulphurization system 3 after cooling.
Specifically, 60-75 DEG C of heat medium water is exchanged heat in flue gas reheat eliminating white smoke system 5 with flue gas, condensation water intaking
35-45 DEG C of flue gas of the outlet of heat-exchange system 8 is warming up to 50-70 DEG C, and flue-gas temperature increasing extent of temperature is 15-40 DEG C, heat medium water
45-55 DEG C is cooled to, the heat medium water after cooling flows to depth residual neat recovering system 2 again, the flue gas flow direction chimney 6 after heating.
The present embodiment flue gas condense water taking heat-transfer system 8 condensed while can remove flue gas in SO3, Hg, gas
The pollutants such as colloidal sol, flue gas are in unsaturation dry flue gas state after flue gas reheat eliminating white smoke system 5 is heated, can be effective
The white phenomenon of elimination, while effectively reduce the corrosion of chimney 6；The heat that depth residual neat recovering system 2 reclaims is used to heat cigarette
Gas reheating eliminating white smoke system 5, the condensed water of condensation water taking heat-transfer system 8 come from mechanical-draft cooling tower 10.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different, and the above content described in this specification is only to structure example explanation of the present invention.It is all according to
The equivalence changes or simple change done according to the construction described in inventional idea of the present invention, feature and principle, are included in this hair
In the protection domain of bright patent.Those skilled in the art can do various to described specific embodiment
The modification of various kinds or supplement are substituted using similar mode, without departing from structure of the invention or surmount present claims
Scope defined in book, protection scope of the present invention all should be belonged to.
Claims (10)
- A kind of 1. efficiently water intaking eliminating white smoke cooperation-removal pollutant device, it is characterised in that：Including air-introduced machine, depth waste heat recovery System, desulphurization system, high-efficiency condensation water intake system, flue gas reheat eliminating white smoke system, chimney and heating agent water-circulating pump, high-efficiency condensation Water intake system includes condensation water taking heat-transfer system, condensate water circulatory pump and mechanical-draft cooling tower, air-introduced machine, depth waste heat recovery System, desulphurization system, high-efficiency condensation water intake system, flue gas reheat eliminating white smoke system and chimney are set successively along flow of flue gas direction Put, air-introduced machine is connected with depth residual neat recovering system, and depth residual neat recovering system is arranged at the gas approach of desulphurization system, high Effect condensation water intake system is arranged at the exhaust pass of desulphurization system, and flue gas reheat eliminating white smoke system is arranged in high-efficiency condensation water intaking The flue at the rear portion of system, flue gas reheat eliminating white smoke system connect with chimney；Condensation water taking heat-transfer system is arranged at the exhaust pass of desulphurization system, condensation water taking heat-transfer system and condensate water circulatory pump It is connected, condensate water circulatory pump is connected with mechanical-draft cooling tower, and condensation water taking heat-transfer system is connected with mechanical-draft cooling tower, cold Solidifying water taking heat-transfer system, condensate water circulatory pump and mechanical-draft cooling tower form closed-loop path；Depth residual neat recovering system is connected with heating agent water-circulating pump, and heating agent water-circulating pump is connected with flue gas reheat eliminating white smoke system, Depth residual neat recovering system is connected with flue gas reheat eliminating white smoke system, depth residual neat recovering system, heating agent water-circulating pump and flue gas Reheating eliminating white smoke system forms closed-loop path.
- 2. efficiently water intaking eliminating white smoke cooperation-removal pollutant device according to claim 1, it is characterised in that：It is described efficient Water intaking eliminating white smoke cooperation-removal pollutant device also includes wet electrical dust precipitator system, and wet electrical dust precipitator system is arranged on desulfurization At the exhaust pass of system, desulphurization system, wet electrical dust precipitator system and high-efficiency condensation water intake system along flow of flue gas direction according to Secondary connection.
- 3. efficiently water intaking eliminating white smoke cooperation-removal pollutant device according to claim 1 or 2, it is characterised in that：It is described Condensation water taking heat-transfer system is made up of heat exchanger shell, upper spacer, heat exchanger tube, lower clapboard and water leg；Upper spacer, heat exchanger tube and Lower clapboard is arranged in heat exchanger shell, and upper spacer is arranged on the top of lower clapboard, heat exchanger tube be arranged on upper spacer and under every Between plate, water leg is arranged at the lower section of heat exchanger tube and lower clapboard.
- 4. efficiently water intaking eliminating white smoke cooperation-removal pollutant device according to claim 3, it is characterised in that：Under described every Plate is combined by top plate and lower plywood, and top plate is arranged at the top of lower plywood, and top plate is umbrella shape plate, and the centre of top plate is high For degree higher than the brim height of top plate, lower plywood is porous plate, is connected between top plate and lower plywood by metal framework.
- 5. efficiently water intaking eliminating white smoke cooperation-removal pollutant device according to claim 4, it is characterised in that：On described every The shape of cross section of plate and the shape of cross section of lower clapboard are rectangle, square or circle, and condensation water taking heat-transfer system is changed Heat pipe material is fluoroplastics.
- A kind of 6. work of efficient water intaking eliminating white smoke cooperation-removal pollutant device as described in claim 1-5 any claims Make method, it is characterised in that：Comprise the following steps：Flue gas passes through by air-introduced machine, depth residual neat recovering system, desulphurization system, high-efficiency condensation water intake system, flue gas reheat successively Eliminating white smoke system and chimney, the flue gas of the outlet of air-introduced machine is low through depth residual neat recovering system processing cigarette temperature drop, the cigarette after cooling Gas enters condensation water taking heat-transfer system after desulphurization system is handled and condensed, and condensed flue gas enters flue gas reheat eliminating white smoke System is heated；Condensed water is exchanged heat by condensing water taking heat-transfer system with flue gas, after condensed water heating, is conveyed by condensate water circulatory pump Being cooled to mechanical-draft cooling tower, subsequent condensed water is recycled to condensation water taking heat-transfer system from mechanical-draft cooling tower again, So as to realize the cycle heat exchange of condensed water；Heat medium water is exchanged heat by depth residual neat recovering system with flue gas, defeated via heating agent water-circulating pump after heat medium water heating Flue gas reheat eliminating white smoke system is sent to, carrying out heat exchange again with flue gas cools, and then heat medium water is recycled to depth waste heat recovery System, so as to realize the cycle heat exchange of heat medium water.
- 7. the method for work of efficiently water intaking eliminating white smoke cooperation-removal pollutant device according to claim 6, its feature exist In：The flue gas successively pass through by air-introduced machine, depth residual neat recovering system, desulphurization system, wet electrical dust precipitator system, efficiently it is cold Solidifying water intake system, flue gas reheat eliminating white smoke system and chimney.
- 8. the method for work of efficiently water intaking eliminating white smoke cooperation-removal pollutant device according to claim 7, its feature exist In：The condensed water is circulated in heat exchanger tube, and flue gas contacts cold in heat exchanger tube so as to transfer heat to heat exchanger tube But water so that flue gas generates condensed water, and the condensed water of flue gas generation is flowed into water leg by lower clapboard.
- 9. the method for work of efficiently water intaking eliminating white smoke cooperation-removal pollutant device according to claim 8, its feature exist In：0-25 DEG C of the condensed water taking heat-transfer system of condensed water and 40-50 DEG C of the flue gas in the exit of wet electrical dust precipitator system Exchanged heat, then condensate temperature is increased to 10-35 DEG C, and the increasing extent of temperature of condensed water is 10-15 DEG C, and flue-gas temperature is by 40- 50 DEG C are reduced to 35-45 DEG C, and flue-gas temperature cooling extent is 3-5 DEG C, and the flue gas after cooling enters flue gas reheat eliminating white smoke system, Condensed water after heating cools down into mechanical-draft cooling tower；45-55 DEG C of heat medium water is exchanged heat in depth residual neat recovering system with flue gas, and flue-gas temperature cools to 65-90 DEG C, Flue-gas temperature cooling extent is 15-40 DEG C, and heat medium water is warming up to 60-75 DEG C；60-75 DEG C of heat medium water is exchanged heat in flue gas reheat eliminating white smoke system with flue gas, and condensation water taking heat-transfer system goes out 35-45 DEG C of flue gas of mouth is warming up to 50-70 DEG C, and flue-gas temperature increasing extent of temperature is 15-40 DEG C, and heat medium water cools to 45-55 DEG C.
- 10. the method for work of efficiently water intaking eliminating white smoke cooperation-removal pollutant device according to claim 9, its feature exist In：Flue gas condense water taking heat-transfer system condensed while can remove flue gas in SO3, Hg, aerosol, flue gas is in flue gas Reheating eliminating white smoke system is in unsaturation dry flue gas state after being heated, and eliminates white phenomenon, while effectively reduce chimney Corrosion；The heat of depth residual neat recovering system recovery is used to heat flue gas reheat eliminating white smoke system, condensation water taking heat-transfer system Condensed water comes from mechanical-draft cooling tower.
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| CN109045953A (en) * | 2018-10-16 | 2018-12-21 | 西安交通大学 | A kind of cooling dehumidification by condensation decontamination reheating of flue gas disappears white system and method |
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| CN109107328A (en) * | 2018-11-05 | 2019-01-01 | 南京普兰特换热设备有限公司 | It solves desulfurization fume and takes off white method and desulphurization system |
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